Mason Natural standardized extract Ashwagandha 500 mg once a day capsule may help support normal, restful sleep and may help support mental focus and acuity. Ashwagandha 500 mg contains 21 mg of Calcium and 500 mg of Ashwagandha Extract from Withania somnifera root that is standardized to contain not less than 5 mg of Withanolides and may help support physical performance and strength. It is guaranteed no added sugar, sodium, yeast, soy, corn, wheat, dairy, fish, tree nuts, peanuts, egg, crustacean shellfish, artificial flavors, or preservatives. It is Soy Free. Ashwagandha 500 mg may help support normal, healthy levels of the stress hormone cortisol, which often causes insomnia, fatigue, lack of mental focus and reduced physical strength and performance. Ashwagandha’s effects on cortisol may help the body to adapt to many of the stresses we experience every day.